User AleksanderRas

8

19

votes

4

answers

3k

views

Are encryption algorithms with fixed-point free permutations inherently flawed?

Oct 13 '19 at 22:06 Community♦ 1

6

18

votes

0

answers

741

views

Crypto AG (Switzerland) - Which algorithms were used and how did the backdoors work?

protocol-design cryptographic-hardware history backdoors

Feb 6 at 16:14 Patriot 2,321

5

16

votes

1

answer

3k

views

Can neural cryptanalysis be applied to AES?

aes cryptanalysis des rijndael

Feb 18 '19 at 14:04 Maarten Bodewes♦ 77.3k

2

10

votes

3

answers

2k

views

Homomorphic encryption - Why does addition not imply multiplication?

homomorphic-encryption

Dec 29 '18 at 16:40 Ella Rose 18.8k

3

6

votes

3

answers

558

views

Can Shor's algorithm factor multi-prime numbers?

rsa factoring quantum-cryptanalysis shors-algorithm

Feb 15 at 1:18 forest 11.5k

1

5

votes

1

answer

101

views

What are the uses of arbitrary length output hashes (other than OAEP)?

hash keccak oaep

Mar 4 '19 at 3:07 Community♦ 1

1

4

votes

2

answers

279

views

When does multiple OTP encryption become insecure if new keys are permuted?

one-time-pad perfect-secrecy

Aug 23 '19 at 21:18 Squeamish Ossifrage 43k

4

votes

1

answer

456

views

Is the practice of “security through obscurity” violating Kerckhoffs's second principle?

security-definition

Oct 17 '18 at 11:26 Paul Uszak 12k

1

4

votes

1

answer

189

views

Is obfuscation always reversable?

software-obfuscation

Jul 10 '18 at 17:14 SEJPM♦ 42.4k

3

votes

1

answer

631

views

PRNG with a truly random seed?

pseudo-random-generator

Sep 4 '18 at 21:57 Maarten Bodewes♦ 77.3k

2

votes

2

answers

298

views

Have there been efforts to prevent length extension attacks of hashing algorithms that are based on the Merkle–Damgård construction?

hash merkle-damgaard length-extension

Apr 5 '19 at 11:19 kelalaka 32.8k

2

votes

2

answers

145

views

Authentication without decrypting the password?

authentication passwords two-factor-authentication

Jan 26 '19 at 12:14 simbo1905 555

2

votes

1

answer

90

views

Is there a rule of thumb for ZK protocols?

zero-knowledge-proofs probability

Dec 7 '18 at 17:10 Geoffroy Couteau 14.3k

2

votes

1

answer

2k

views

GUIDs as a salt

salt password-hashing

Oct 17 '18 at 2:45 Community♦ 1

2

votes

2

answers

563

views

Optimal bit-change-probability of the avalanche effect for hashes

hash avalanche

Oct 7 '18 at 10:16 fgrieu♦ 110k

2

votes

2

answers

189

views

Whatsapp E2EE - Why scanning the QR-code?

encryption

Sep 8 '18 at 14:45 AleksanderRas 6,038

1

vote

1

answer

111

views

Are there any classical proven secure cryptographic algorithms other than OTP? [duplicate]

provable-security perfect-secrecy

Jul 1 '19 at 7:59 Community♦ 1

1

vote

1

answer

183

views

Is a hashing algorithm considered broken if a collision happens under $2^{n/2}$?

hash collision-resistance

Feb 14 '19 at 8:09 AleksanderRas 6,038

1

vote

1

answer

63

views

Frequency analysis secure language

frequency-analysis

Sep 8 '18 at 21:19 Shan Chen 2,515

1

vote

2

answers

139

views

Hashing login and password?

hash passwords

May 8 '18 at 6:10 Future Security 3,051

1

vote

3

answers

938

views

Information-theoretic security [closed]

encryption provable-security post-quantum-cryptography

Apr 27 '18 at 17:20 Guru Vamsi Policharla 78

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21 Questions

Are encryption algorithms with fixed-point free permutations inherently flawed?

Crypto AG (Switzerland) - Which algorithms were used and how did the backdoors work?

Can neural cryptanalysis be applied to AES?

Homomorphic encryption - Why does addition not imply multiplication?

Can Shor's algorithm factor multi-prime numbers?

What are the uses of arbitrary length output hashes (other than OAEP)?

When does multiple OTP encryption become insecure if new keys are permuted?

Is the practice of “security through obscurity” violating Kerckhoffs's second principle?

Is obfuscation always reversable?

PRNG with a truly random seed?

Have there been efforts to prevent length extension attacks of hashing algorithms that are based on the Merkle–Damgård construction?

Authentication without decrypting the password?

Is there a rule of thumb for ZK protocols?

GUIDs as a salt

Optimal bit-change-probability of the avalanche effect for hashes

Whatsapp E2EE - Why scanning the QR-code?

Are there any classical proven secure cryptographic algorithms other than OTP? [duplicate]

Is a hashing algorithm considered broken if a collision happens under $2^{n/2}$?

Frequency analysis secure language

Hashing login and password?

Information-theoretic security [closed]